Ecclesiastes 4 - ESV

Then I saw that all toil and all skill in work come from a man's envy of his neighbor. This also is vanity and a striving after wind.
Ecclesiastes 4:4 work neighbor desires
Two are better than one, because they have a good reward for their toil.
Ecclesiastes 4:9 friendship relationships work

For if they fall, one will lift up his fellow. But woe to him who is alone when he falls and has not another to lift him up!
Ecclesiastes 4:10 relationships friendship neighbor
And though a man might prevail against one who is alone, two will withstand him—a threefold cord is not quickly broken.
Ecclesiastes 4:12 relationships friendship strength